Dmc Devil May Cry Steam Must Be Running To Play This Game Fix Top May 2026
Before fixing it, understand the enemy. This error is caused by a broken DRM handshake.
DmC: Devil May Cry uses an older version of Steam’s DRM wrapper. When you press "Play," Steam tells the game, "Hey, it’s cool, let them play." However, due to modern operating system security, compatibility layers (Proton/WINE), or corrupted local files, the game’s executable loses track of the parent Steam process. The game looks for steam.exe or steamwebhelper.exe, doesn't see it, and throws the error. Before fixing it, understand the enemy
On Steam Deck, this is especially common because the game was built for Windows, and the Proton translation layer sometimes delays the handshake signal. Best for: Permission conflicts between the game and
Best for: Permission conflicts between the game and the client. If this works, you may need to set
This is the most common fix. If Steam is running with normal privileges but the game tries to access system-level files, the handshake fails.
If this works, you may need to set Steam to always run as admin permanently:
Some older DRM wrappers conflict with modern Steam. Delete the DRM file:
Before fixing it, understand the enemy. This error is caused by a broken DRM handshake.
DmC: Devil May Cry uses an older version of Steam’s DRM wrapper. When you press "Play," Steam tells the game, "Hey, it’s cool, let them play." However, due to modern operating system security, compatibility layers (Proton/WINE), or corrupted local files, the game’s executable loses track of the parent Steam process. The game looks for steam.exe or steamwebhelper.exe, doesn't see it, and throws the error.
On Steam Deck, this is especially common because the game was built for Windows, and the Proton translation layer sometimes delays the handshake signal.
Best for: Permission conflicts between the game and the client.
This is the most common fix. If Steam is running with normal privileges but the game tries to access system-level files, the handshake fails.
If this works, you may need to set Steam to always run as admin permanently:
Some older DRM wrappers conflict with modern Steam. Delete the DRM file:
